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Information on Business Segments (Depreciation Expense by Segment) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Segment Reporting Information [Line Items] |  |  |
Total depreciation | $ 37.9 | $ 34.9 | $ 34.0
ACCO Brands North America |  |  |
Segment Reporting Information [Line Items] |  |  |
Total depreciation | 19.6 | 17.3 | 15.9
ACCO Brands EMEA |  |  |
Segment Reporting Information [Line Items] |  |  |
Total depreciation | 12.7 | 12.2 | 12.6
ACCO Brands International |  |  |
Segment Reporting Information [Line Items] |  |  |
Total depreciation | $ 5.6 | $ 5.4 | $ 5.5

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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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